Use of Marijuana?

Recently Colorado passed a law making the use of marijuana legal if you use it for recreational use.  For years the use of marijuana has been illegal, so why the sudden change? What is our country going to be like if marijuana is legal? Will people treat it like the use of alcohol or will kids and adults constantly be high? It’s hard to picture a functional work environment when people are constantly high. I see many negative effects that marijuana will have on our country, but there are also many positive aspects. Many people argue that it will help the economy by a huge margin. According to CNN the use of selling marijuana could save the government up to 14 billion a year.  Although it is a very questionable prediction 14 billion dollars would help the government a lot and the people. I’m interested in how marijuana will be treated in the state of Colorado, in a way for many states they are test dummies. If it works and is treated in a positive way then marijuana could be a positive thing to our environment, but I believe that people will abuse it and become a negative aspect to our current life.